<?php

/**
 * Zend Framework
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@zend.com so we can send you a copy immediately.
 *
 * @category   Zend
 * @package    Zend_Gdata
 * @subpackage Gdata
 * @copyright  Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 * @version    $Id: Entry.php 16971 2009-07-22 18:05:45Z mikaelkael $
 */

/**
 * @see Zend_Gdata
 */
require_once 'Zend/Gdata.php';

/**
 * @see Zend_Gdata_App_MediaEntry
 */
require_once 'Zend/Gdata/App/MediaEntry.php';

/**
 * Represents the Gdata flavor of an Atom entry
 *
 * @category   Zend
 * @package    Zend_Gdata
 * @subpackage Gdata
 * @copyright  Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */
class Zend_Gdata_Entry extends Zend_Gdata_App_MediaEntry
{

	protected $_entryClassName = 'Zend_Gdata_Entry';

	public function __construct($element = null)
	{
		$this->registerAllNamespaces(Zend_Gdata::$namespaces);
		parent::__construct($element);
	}

	public function getDOM($doc = null, $majorVersion = 1, $minorVersion = null)
	{
		$element = parent::getDOM($doc, $majorVersion, $minorVersion);
		// ETags are special. We only support them in protocol >= 2.X.
		// This will be duplicated by the HTTP ETag header.
		if ($majorVersion >= 2) {
			if ($this->_etag != null) {
				$element->setAttributeNS($this->lookupNamespace('gd'),
                                         'gd:etag',
				$this->_etag);
			}
		}
		return $element;
	}

	protected function takeChildFromDOM($child)
	{
		$absoluteNodeName = $child->namespaceURI . ':' . $child->localName;
		switch ($absoluteNodeName) {
			case $this->lookupNamespace('atom') . ':' . 'content':
				$content = new Zend_Gdata_App_Extension_Content();
				$content->transferFromDOM($child);
				$this->_content = $content;
				break;
			case $this->lookupNamespace('atom') . ':' . 'published':
				$published = new Zend_Gdata_App_Extension_Published();
				$published->transferFromDOM($child);
				$this->_published = $published;
				break;
			case $this->lookupNamespace('atom') . ':' . 'source':
				$source = new Zend_Gdata_App_Extension_Source();
				$source->transferFromDOM($child);
				$this->_source = $source;
				break;
			case $this->lookupNamespace('atom') . ':' . 'summary':
				$summary = new Zend_Gdata_App_Extension_Summary();
				$summary->transferFromDOM($child);
				$this->_summary = $summary;
				break;
			case $this->lookupNamespace('app') . ':' . 'control':
				$control = new Zend_Gdata_App_Extension_Control();
				$control->transferFromDOM($child);
				$this->_control = $control;
				break;
			default:
				parent::takeChildFromDOM($child);
				break;
		}
	}

	/**
	 * Given a DOMNode representing an attribute, tries to map the data into
	 * instance members.  If no mapping is defined, the name and value are
	 * stored in an array.
	 *
	 * @param DOMNode $attribute The DOMNode attribute needed to be handled
	 */
	protected function takeAttributeFromDOM($attribute)
	{
		switch ($attribute->localName) {
			case 'etag':
				// ETags are special, since they can be conveyed by either the
				// HTTP ETag header or as an XML attribute.
				$etag = $attribute->nodeValue;
				if ($this->_etag === null) {
					$this->_etag = $etag;
				}
				elseif ($this->_etag != $etag) {
					require_once('Zend/Gdata/App/IOException.php');
					throw new Zend_Gdata_App_IOException("ETag mismatch");
				}
				break;
			default:
				parent::takeAttributeFromDOM($attribute);
				break;
		}
	}

}
